What do you mean exactly by “what level”? They aren’t EV (extended validation) certificates, if that’s what you’re asking.

If you’re wondering what level of encryption they support, that actually isn’t a function of the SSL certificate anymore — all modern SSL certificates, no matter from what provider, support whatever levels of encryption the web server and web browser can both use. (To put that in a different perspective: Yes, our SSL certificates do support 256-bit encryption, like basically every SSL certificate available today.)